AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Ring Bearing Inner |
| Federal Supply Group (FSG) | Bearings |
| Federal Supply Class (FSC) | 3110 Bearings Antifriction Unmounted |
| National Item Identification Number (NIIN) | 00-690-3991 (006903991) |
| NCB Code | USA (00) |
| Manufacturer | Rbc Bearings Incorporated, Hiller Aircraft Corporation, Helicopter Parts Service Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABMK | OVERALL WIDTH | 1.0100 INCHES NOMINAL |
| ABXV | BORE DIAMETER | 1.0000 INCHES NOMINAL |
| ADGA | OVERALL OUTSIDE DIAMETER | 1.2505 INCHES NOMINAL |
| AGYE | SURFACE FINISH | GROUND |
| AGZD | BORE SHAPE | STRAIGHT |
| CTFZ | STANDARD TOLERANCE DESIGNATION | AFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS |
| FEAT | SPECIAL FEATURES | OIL HOLE W/OIL GROOVE IN CENTER OF ID SURFACE,END OF RACE SQ/W OD WITHIN 0.0012 IN.,WALL VARIATION NOT TO EXCEED 0.0005 IN. |
| MATT | MATERIAL | STEEL COMP E52100 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | SOLID INNER RACE,JOURNAL AND NEEDLE |
| Relevant Components for NSN - 3110-00-690-3991, 3110006903991 | ||||
| 3110-00-003-9270 (3110000039270) | 3120-00-948-5325 (3120009485325) | 3120-01-281-8447 (3120012818447) | 3120-00-432-7549 (3120004327549) | |
| 3120-12-347-5626 (3120123475626) | 3120-00-190-4518 (3120001904518) | 3110-01-606-7510 (3110016067510) | 3110-01-400-6136 (3110014006136) | |
| 3110-00-100-3617 (3110001003617) | 3120-00-174-6371 (3120001746371) | 3110-01-556-1019 (3110015561019) | 3120-01-104-8486 (3120011048486) | |
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